| 495 05 | ACTIVITY CAGES, MAZES, AND OTHER ANIMAL PSYCHOLOGY EQUIPMENT |
| 495 07 | AGRICULTURAL SCIENCE EQUIPMENT: DIFFUSIVE RESISTANCE METERS, LEAF POROMETERS AND WATER POTENTIAL MEASURING EQUIPMENT, SEED COUNTERS AND GERMINATORS, SOIL STERILIZERS, ETC. |
| 495 08 | AMPHIBIA FOR LABORATORY RESEARCH, PRESERVED) |
| 495 09 | ANIMAL CAGE AND RACK WASHING EQUIPMENT |
| 495 10 | ANIMAL CAGES AND SUPPLIES, INCLUDING LITTER, LABORATORY |
| 495 12 | ANIMALS, EXPERIMENTAL, NOT SPECIALLY BRED |
| 495 13 | ANIMALS, EXPERIMENTAL, SPECIALLY BRED OR SELECTED (E.G., ALBINO MICE AND RATS) |
| 495 15 | AQUARIUMS AND SUPPLIES |
| 495 20 | BIOLOGY EQUIPMENT AND SUPPLIES (NOT OTHERWISE CLASSIFIED) |
| 495 25 | BIOLOGY SPECIMENS AND CULTURES, EXCEPT MICROBIAL |
| 495 26 | BIOLOGY SPECIMENS AND CULTURES, INCLUDING MICROBIAL: COMPLETE ECOSYSTEMS, ETC. |
| 495 28 | BIOTECHNOLOGY AND CLINICAL EQUIPMENT AND SUPPLIES |
| 495 29 | BOTANICAL LABORATORY EQUIPMENT AND ACCESSORIES |
| 495 30 | BOTANY SPECIMENS |
| 495 33 | BREEDING AND OTHER INSECT EQUIPMENT, LABORATORY |
| 495 35 | CABINETS AND CASES, STORAGE, FOR SLIDES AND SPECIMENS |
| 495 36 | CHARTS, ANATOMICAL AND LIFE SCIENCES |
| 495 37 | COUNTERS AND COUNTING CHAMBERS, FOR BACTERIAL COLONIES, BLOOD CELLS, ETC.: HEMACYTOMETERS, ETC. |
| 495 38 | CULTURES, MICROBIAL, LIVING ORGANISM |
| 495 41 | FERMENTATION EQUIPMENT: CHEMOSTATS, CHEMOTAXIS CHAMBERS, FERMENTERS, ETC. |
| 495 43 | GEOLOGY, EARTH SCIENCE |
| 495 44 | GEOLOGY EQUIPMENT AND SUPPLIES |
| 495 45 | GEOLOGY SPECIMENS AND COLLECTIONS |
| 495 48 | INCUBATORS: CONVECTION, CO2, ANAEROBIC CHAMBERS, ETC., AND PLANT GROWTH CHAMBERS |
| 495 49 | INVERTEBRATES AND VERTEBRATES, PRESERVED |
| 495 50 | HERBARIUM EQUIPMENT AND SUPPLIES: DRYING CASES, ETC. |
| 495 54 | INSECTS FOR LABORATORY RESEARCH |
| 495 55 | INSTRUMENTS, DISSECTING |
| 495 56 | MICROBIOLOGY EQUIPMENT AND ACCESSORIES (NOT OTHERWISE CLASSIFIED) |
| 495 57 | MICROSCOPE SLIDE PREPARATION EQUIPMENT: STAINING RACKS AND TRAYS, SLIDE WARMERS, ETC. |
| 495 58 | MICROSCOPY SUPPLIES: CEMENT, IMMERSION OIL, SLIDE HOLDERS, DISPENSERS AND MAILERS, ETC. |
| 495 60 | MOUNTS AND MODELS |
| 495 65 | MUSEUM PREPARATIONS AND SUPPLIES: LABELS, ETC. |
| 495 69 | NEUROPSYCHOLOGICAL TESTING EQUIPMENT: REACTION TIME, ROTARY PURSUIT, ETC. |
| 495 70 | OCEANOGRAPHY AND LIMNOLOGY EQUIPMENT: DREDGES, THERMOGRAPHS, ETC. |
| 495 73 | PHYSIOLOGICAL TESTING AND RECORDING EQUIPMENT, SINGLE AND MULTICHANNEL, AND ACCESSORIES: ELECTRODES, MONITORS, STIMULATORS, ETC. |
| 495 75 | PREPARED SLIDES, MICROSCOPE |
| 495 78 | REPTILES, PRESERVED |
| 495 82 | SCALES, LABORATORY, ANIMAL AND HUMAN: AUTOPSY SCALES, UNDERWATER SCALES, ETC. |
| 495 84 | SLIDE STAINER EQUIPMENT AND ACCESSORIES (NOT OTHERWISE CLASSIFIED) |
| 495 85 | SKELETONS: MOUNTED, UNMOUNTED, AND PARTIAL |
| 495 88 | TISSUE AND ORGAN CULTURE EQUIPMENT: CELL HARVESTERS, ROLLER DRUMS, ETC. |
| 495 90 | TISSUE-PROCESSING EQUIPMENT AND SUPPLIES, FOR HISTOLOGY: CRYOSTATS, FLOTATION BATHS, MICROTOMES, PARAFFIN EMBEDMENT SYSTEMS, ETC. |
| 495 95 | ZOOLOGY SPECIMENS, LIVE AND INJECTED |
| 495 97 | RECYCLED BIOLOGY, BOTANY, GEOLOGY, MICROBIOLOGY AND ZOOLOGY EQUIPMENT AND SUPPLIES |